Explosion-engine.



E. R. FRIED. EXPLOSION ENGINE. APPLICAIION man JUNE 8. 1912.

1,147,855. Patented July '27, 1915'.

[mi anti? Zrwest' R, Fri/60L UNITED san'rns PATENT OFFIQt ERNEST B. FRIED, 0F DETROIT, MICHIGAN, ASSIGNOB TO GENERAL MOTORS COMPANY, OF DETROITyMICHIGAN, A CORPORATION OF NEW JERSEY.

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Specification of Letters Patent.

Patented J ulyfib? 1915.

Application filed June a, 191a Serial No. 702,477.

To all whom it may concern.-

Be it known that I, ERNEST R. FRIED, a subject of the Emperor of Austria-Hungary, residing at Detroit,in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Explosion-Engines, of which the following is a specification, reference being had therein to the accompanyingdrawings.

The invention relates to control mechanisms for explosion engines and has for its object the independent and proportionate variation of' the air and fuel for each explosive charge. The construction is particularly designed for use in connection with a multi-cylinder engine and one in which each cylinder is provided with a corresponding pump for supplying it with the explosive charge, being adapted for either .two or four cycle. y

In the drawings, Figure 1 is a diagrammatic view showing a multi-cylinder engine with my control device applied thereto; Fig. 2 is a cross section through the air controlling valve; and Fig. 3 is a diagrammatic view of the connections.

A are the power cylinders of a multicylinder engine and which in the construction shown are provided each with an enlargement B forming a pump cylinder, C are the pistons provided with portions for fitting the power and pump cylinders, D, D and D are connections between each of the pump cylinders and the inlet port E of another cylinder and F is a. rotary valve controlling the admission of air to each of the pump cylinders through the conduits A, A and A. The arrangement as thus far described is such that a volume of air admitted to one of the pump cylinders will be transferred therefrom through the connecting. conduit to the corresponding power cylinder. the admission being timed by the movement of the piston in uncovering the port E. Instead of handling carbureted air by the pumps, air alone is preferably used and the charge is carbureted at the point of introduction to the ower cylinder by the injection of a suitabe quantity ofv liquid fuel.

nation with the construction above described, means for varyingthe volume of air admitted to each of the pumps and cooperating means My control mechanism comprises in combifor proportionately varying the qaantity of liqud fuel. Thus the proper mixture for explosion is maintained but the quantity is varied according to the requirements of the work.

In detail, the rotary valve F is preferably hollow and receives its air through ports in the end. There. are also ports G for registering with the ports H in the valve case connecting respectively with the pump cylinders B, the timing being effected by the positioning of said ports G.

I is an adjustable sleeve preferably arranged intermediate the valve F and its. case and which by a rotative adjustment will vary the point of cut-off of the rotary valve,

thereby changing the quantity of air drawnits stroke such as a sliding fulcrum L intermediate two levers M and N which impart movement from a cam O to the pump plunger P.

Q is a link connected to the fulcrum member L. and R isa link connected to a rock arm S on the sleeve I of the rotary valve, said links R and Qbeing .onnected to a common actuating crank T.

In operation the crank '3'. may be adjusted to'correspondingly adjust the rotative sleeve I and the stroke of the pump "I. which in vturn will vary the quantity of air and the quantity of liquid fuel-introduced into the power cylinder. proportionately. This will control the power of the engine and without danger of stopping the same through improper explosive mixture.

What I claim as my invention is:

1. In a. multi-cylinder explosion engine, the combination with a plurality of cylinders and a pump corresponding to each cyliuder, of valveless conduits connecting each pump with its corresponding cylinder, a single valve for controlling the admission of air to all the pumps, and means for injecting a measured quantity of liquid fuel into the path of the air passing through said valveless conduit into .the cylinder.

2. In a multi-cylinder explosion engine,

the combination with a pluri'ility of power cyhnderseach having an ahned pump cylinder, of valveless conduits connecting each pump cylinder with an unalined powercylinder, a valve Controlling the admission of air to the respective pump cylinders, means for injecting a measured quantity of liquid v.fuel into the path of air passing through each valveless conduit, and means for proportionately varying the quantity of air admitted to said pump cylinder and the quan- --tity of liquid fuel injected.

3. In a multi-cyhnder explosion engine,

thecombination with a plurality of power valveless conduits for connecting each pump v cylinders, each having an alined pump cylinder, a rotary valve having an air inlet,

cylinder with a power cylinder, independent Y of said valve,-.conduits respectively connccting the valve with said first-mentioned con- .i duits whereby air is admitted to the latter -and the rotary valve, a'nda member concentric with said valve] and, cooperating therewith for varying the time of cut-oil to correspondingly vary the volume admitted T1 ,to said pumpcylinder.

In a multircylinder explosion engine, the combination with plurality of power gcylinders each having an unalined'pump cylinder, of valveless conduits connecting v each pump cylinder with, an unali ned power v cylinder, a, hollow rotary valve for controlling the admission to each of said pump cyl- -.inders and having an open (and induction port, and an adjustable-sleeve for varying Uthe'time of cutoff of said valve correspondingly to each of the pump cylinders.

'5. In anudti-cyli1ider explosion engine, the combination with -a.'p1urality of power cylil'iders each having an alined pump cylinder, of a hollow rotary valve controlling the admission to each of said pump cylininder, oi"' conduits connecting each pump to its corresponding c 'li i'der,'a yalve for controlling the admission of an to thep'uinps, an adpistable member cooperating with said valve for varying the'time of cutoit, and a common meansior ad uSting said" member and varying the fuelsupp ly tosaidengine. V a

In testimony whereof I afilgg my s gnature in presence of two witnesses.

Witnesses W. J. BnLKN r, Y

' JAMES P, BAiilt Yi" ERNEST gn'rainn 

